Results 81 to 90 of about 6,942,383 (265)
Design and Performance Analysis of the OOTFS with Sparse Dual Mode Index Modulation System
Guangtongxin yanjiuObjectiveOptical Orthogonal Time–Frequency Space (OOTFS) systems exhibit strong robustness in complex optical channels. To further enhance the Spectral Efficiency (SE), Index Modulation (IM) has been introduced into OOTFS systems.
WANG Zhen +5 more
doaj
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
Modulation of host immunity by rationally selected probiotics
, 2019 Intestinal microbiota plays a critical role in the modulation of human health. Dysregulation of the commensal flora is closely linked to functional changes of the immune system and subsequently contributes to development of immune disorders.
IM, SIN HYEOG
core
Netzwerkbeziehungen im Biotech-Bereich : eine Analyse im Grossraum Zürich [PDF]
, 2007 Spricht man von Wachstum und Innovation, so ruht ein grosser Teil der Hoffnungen auf einigen zukunftsträchtigen Schlüsselindustrien. Eine dieser Schlüsselindustrien sind die sogenannten Life Sciences, wozu auch die Biotech-Industrie gehört.
C. Klöpper +2 more
core +2 more sources
Journal of Telecommunications and Information TechnologyThanks to its improved spectral efficiency and immunity to frequency selective fading, OFDM with index modulation (OFDM-IM) has become a perspective option.
Asaad H. Sahar +2 more
doaj +1 more source
Achieving Transmit Diversity in OFDM-IM by Utilizing Multiple Signal Constellations
IEEE Access, 2017 Orthogonal frequency division multiplexing (OFDM) index modulation (IM) is a novel multicarrier modulation, which employs both the indices of the active subcarriers and conventional constellation symbols to convey information.
Jianping Zheng, Ru Chen
doaj +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Spectral Efficiency Enhancement Based on Sparsely Indexed Modulation for Green Radio Communication
IEEE Access, 2019 Jointly enhancing both energy efficiency (EE) and spectrum efficiency (SE) of modulation schemes becomes one of the main issues for 5G mobile communications.
Mostafa Salah +2 more
doaj +1 more source
Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers
FEBS Letters, EarlyView.Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui +4 more
wiley +1 more source